Circle Go impacts the way that your devices connect to the Internet, so you may be wondering if there will be a significant impact on your device's performance. There are a couple of things that are worth keeping in mind with Circle Go:
Once the Circle Go VPN establishes a connection, the strength is comparable to normal Wi-Fi or 4G LTE connection strength. There should be no difference in connection strength with or without the Circle Go VPN enabled, and service should not drop in and out with the VPN enabled.
With typical use, Circle Go will not noticeably impact connection speeds for your device. Some users report that Circle Go significantly improves their mobile performance and others report no difference in their experience. The only time you should notice a significant impact is when your device is coming back up from being "asleep" for a while and attempting to make its initial connect to the Circle Go VPN service. That initial connection between the device and the Circle VPN may take an extra moment to establish Internet connection.
Initial tests suggest that running the Circle Go VPN with constant connection may drain battery life more rapidly than without Circle Go enabled. The impact is more significant on Android than iOS.
Availability of Other Apps or Services Online
Some devices will experience trouble with apps and online services while Circle Go is enabled. Here is a list of known issues.